[1966Step]

I have e3.46 plugs which someone recommended when I replaced 2-3 years ago. Same specs but it has a fixed gap and can’t be adjusted. They’ve done me good until this latest episode. Will probably change to ACDelco’s or similar and get some new wires. The firing order is correct.

I switched plugs today and leaned up on the fuel mixture by ½ turn. Managed to make it 1 mile to the gas station and still running rough and backfired once but seemed better. I will mess with the timing this week as I just bought a light and need to learn more on how to use it. Tonight it’s Youtube on that subject and football.

Also, I’ve mostly been taking her on short ½ hr backroad drives (up to 50 MPH to work) and such since I had the rear-end changed to 307 and a lot more short 10 minute drives where I live. I saw that short drives and idling can cause carbon deposits on the plugs. So my recent trip to VA (3 hours) was something my truck hasn’t done in 30+ years!

Thanks everyone for chiming in with your thoughts. I appreciate it!